Permanent double strike is terrible for your opponent but getting to put it on a creature at instant speed is on a whole other level of trouble
it evolves when you play a bigger creature, which lets it tap for more mana, allowing you to play a bigger creature to trigger evolve again, so you can tap it for even more mana, and so on
a card with cycling can be cast or cycled, a modal double-faced card like Witch Enchanter can be played as a creature or a land
Overall, I think its pretty sweet, and if youre looking for an alternative Jund lands commander, youve found it
This image has been used by Games Workshop before - in materials for Warhammer Alliance, the kid-friendly educational support programme for the Warhammer hobby - and we've already seen plenty of original Warhammer 40k MTG crossover set art